<!--
Put this file in /layouts/shortcodes/gallery.html
Documentation and licence at https://github.com/liwenyip/hugo-easy-gallery/
-->
<!-- count how many times we've called this shortcode; load the css if it's the first time -->
{{- if not ($.Page.Scratch.Get "figurecount") }}<link rel="stylesheet" href="/css/hugo-easy-gallery.css" />{{ end }}
{{- $.Page.Scratch.Add "figurecount" 1 }}
{{ $baseURL := .Site.BaseURL }}
<div class="gallery caption-position-{{ with .Get "caption-position" | default "bottom" }}{{.}}{{end}} caption-effect-{{ with .Get "caption-effect" | default "slide" }}{{.}}{{end}} hover-effect-{{ with .Get "hover-effect" | default "zoom" }}{{.}}{{end}} {{ if ne (.Get "hover-transition") "none" }}hover-transition{{end}}" itemscope itemtype="http://schema.org/ImageGallery">
  {{- with (.Get "dir") -}}
    <!-- If a directory was specified, generate figures for all of the images in the directory -->
    {{- $files := readDir (print "/static/" .) }}
    {{- range $files -}}
      <!-- skip files that aren't images, or that inlcude the thumb suffix in their name -->
      {{- $thumbext := $.Get "thumb" | default "-thumb" }}
      {{- $isthumb := .Name | findRE ($thumbext | printf "%s\\.") }}<!-- is the current file a thumbnail image? -->
      {{- $isimg := lower .Name | findRE "\\.(gif|jpg|jpeg|tiff|png|bmp)" }}<!-- is the current file an image? -->
      {{- if and $isimg (not $isthumb) }}
        {{- $caption :=  .Name | replaceRE "\\..*" "" | humanize }}<!-- humanized filename without extension -->
        {{- $linkURL := print $baseURL ($.Get "dir") "/" .Name | absURL }}<!-- absolute URL to hi-res image -->
        {{- $thumb := .Name | replaceRE "(\\.)" ($thumbext | printf "%s.") }}<!-- filename of thumbnail image -->
        {{- $thumbexists := where $files "Name" $thumb }}<!-- does a thumbnail image exist? -->
        {{- $thumbURL := print $baseURL ($.Get "dir") "/" $thumb | absURL }}<!-- absolute URL to thumbnail image -->
        <div class="box">
          <figure itemprop="associatedMedia" itemscope itemtype="http://schema.org/ImageObject">
            <div class="img" style="background-image: url('{{ if $thumbexists }}{{ $thumbURL }}{{ else }}{{ $linkURL }}{{ end }}');" >
              <img itemprop="thumbnail" src="{{ if $thumbexists }}{{ $thumbURL }}{{ else }}{{ $linkURL }}{{ end }}" alt="{{ $caption }}" /><!-- <img> hidden if in .gallery -->
            </div>
            <figcaption>
              <p>{{ $caption }}</p>
            </figcaption>
            <a href="{{ $linkURL }}" itemprop="contentUrl"></a><!-- put <a> last so it is stacked on top -->
          </figure>
        </div>
      {{- end }}
    {{- end }}
  {{- else -}}
    <!-- If no directory was specified, include any figure shortcodes called within the gallery -->
    {{ .Inner }}
  {{- end }}
</div>
